Ansis Upatnieks

451 total citations
10 papers, 387 citations indexed

About

Ansis Upatnieks is a scholar working on Fluid Flow and Transfer Processes, Biomedical Engineering and Automotive Engineering. According to data from OpenAlex, Ansis Upatnieks has authored 10 papers receiving a total of 387 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Fluid Flow and Transfer Processes, 5 papers in Biomedical Engineering and 4 papers in Automotive Engineering. Recurrent topics in Ansis Upatnieks's work include Advanced Combustion Engine Technologies (7 papers), Biodiesel Production and Applications (5 papers) and Vehicle emissions and performance (4 papers). Ansis Upatnieks is often cited by papers focused on Advanced Combustion Engine Technologies (7 papers), Biodiesel Production and Applications (5 papers) and Vehicle emissions and performance (4 papers). Ansis Upatnieks collaborates with scholars based in United States. Ansis Upatnieks's co-authors include Charles J. Mueller, Steven L. Ceccio, James F. Driscoll, Chadwick C. Rasmussen, Glen C. Martin, Bruce A. Buchholz, Charles K. Westbrook and William J. Pitz and has published in prestigious journals such as Combustion and Flame, Energy & Fuels and SAE technical papers on CD-ROM/SAE technical paper series.

In The Last Decade

Ansis Upatnieks

10 papers receiving 372 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Ansis Upatnieks United States 8 306 263 130 94 83 10 387
Cemil Bekdemir Netherlands 13 511 1.7× 393 1.5× 128 1.0× 153 1.6× 77 0.9× 26 546
Thierry Lachaux United States 8 447 1.5× 381 1.4× 146 1.1× 137 1.5× 52 0.6× 12 488
R. Woolley United Kingdom 8 541 1.8× 557 2.1× 92 0.7× 94 1.0× 122 1.5× 10 668
Wanhui Zhao China 14 345 1.1× 312 1.2× 75 0.6× 74 0.8× 40 0.5× 43 445
Panagiotis Kyrtatos Switzerland 12 430 1.4× 359 1.4× 85 0.7× 131 1.4× 25 0.3× 31 460
Marcus Bollig Germany 7 378 1.2× 380 1.4× 61 0.5× 56 0.6× 60 0.7× 14 482
Ertan Yilmaz United States 8 251 0.8× 179 0.7× 41 0.3× 83 0.9× 16 0.2× 12 325
Yuzuru Nada Japan 11 267 0.9× 298 1.1× 61 0.5× 19 0.2× 100 1.2× 48 359
Manzhi Tan China 11 314 1.0× 135 0.5× 165 1.3× 160 1.7× 15 0.2× 16 356
Prithwish Kundu United States 12 372 1.2× 402 1.5× 52 0.4× 30 0.3× 91 1.1× 30 448

Countries citing papers authored by Ansis Upatnieks

Since Specialization
Citations

This map shows the geographic impact of Ansis Upatnieks's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ansis Upatnieks with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ansis Upatnieks more than expected).

Fields of papers citing papers by Ansis Upatnieks

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ansis Upatnieks. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ansis Upatnieks. The network helps show where Ansis Upatnieks may publish in the future.

Co-authorship network of co-authors of Ansis Upatnieks

This figure shows the co-authorship network connecting the top 25 collaborators of Ansis Upatnieks. A scholar is included among the top collaborators of Ansis Upatnieks based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ansis Upatnieks. Ansis Upatnieks is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

10 of 10 papers shown
1.
Upatnieks, Ansis, et al.. (2007). Investigation of Fuel Effects on Dilute, Mixing-Controlled Combustion in an Optical Direct-Injection Diesel Engine. Energy & Fuels. 21(4). 1989–2002. 48 indexed citations
2.
Upatnieks, Ansis, et al.. (2007). Investigation of Fuel Effects on Dilute, Mixing-Controlled Combustion in an Optical Direct-Injection Diesel Engine. Energy & Fuels. 21(6). 3750–3750. 3 indexed citations
3.
Mueller, Charles J. & Ansis Upatnieks. (2007). Operational Characteristics of Oxygenate-Water Fuel Blends Studied in an Optical DI Diesel Engine with Simulated Exhaust Gas Recirculation. SAE technical papers on CD-ROM/SAE technical paper series. 1. 5 indexed citations
4.
Upatnieks, Ansis & Charles J. Mueller. (2005). Clean, Controlled DI Diesel Combustion Using Dilute, Cool Charge Gas and a Short-Ignition-Delay, Oxygenated Fuel. SAE technical papers on CD-ROM/SAE technical paper series. 1. 42 indexed citations
5.
Upatnieks, Ansis, Charles J. Mueller, & Glen C. Martin. (2005). The Influence of Charge-Gas Dilution and Temperature on DI Diesel Combustion Processes Using a Short-Ignition-Delay, Oxygenated Fuel. SAE technical papers on CD-ROM/SAE technical paper series. 1. 31 indexed citations
6.
Upatnieks, Ansis & Charles J. Mueller. (2004). Investigation of the Relationship Between DI Diesel Combustion Processes and Engine-Out Soot Using an Oxygenated Fuel. SAE technical papers on CD-ROM/SAE technical paper series. 1. 32 indexed citations
7.
Buchholz, Bruce A., Charles J. Mueller, Ansis Upatnieks, et al.. (2004). Using Carbon-14 Isotope Tracing to Investigate Molecular Structure Effects of the Oxygenate Dibutyl Maleate on Soot Emissions from a DI Diesel Engine. SAE technical papers on CD-ROM/SAE technical paper series. 1. 44 indexed citations
8.
Upatnieks, Ansis, James F. Driscoll, Chadwick C. Rasmussen, & Steven L. Ceccio. (2004). Liftoff of turbulent jet flames—assessment of edge flame and other concepts using cinema-PIV. Combustion and Flame. 138(3). 259–272. 130 indexed citations
9.
Upatnieks, Ansis, et al.. (2002). A kilohertz frame rate cinemagraphic PIV system for laboratory-scale turbulent and unsteady flows. Experiments in Fluids. 32(1). 87–98. 17 indexed citations
10.
Upatnieks, Ansis, James F. Driscoll, & Steven L. Ceccio. (2002). Cinema particle imaging velocimetry time history of the propagation velocity of the base of a lifted turbulent jet flame. Proceedings of the Combustion Institute. 29(2). 1897–1903. 35 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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